ALTOONA, Pa. -- A convenience-store chain is taking heat from critics who say its new billboard campaign promoting a fried chicken sandwich contains foul language. Sheetz unveiled the "Crispy Frickin' Chicken" billboards at the beginning of February. Roughly one-third of the company's 346 stores carry the sandwich, and the campaign consists of 100 billboards placed near those locations, spokeswoman Monica Jones said Thursday. The campaign is aimed at young adults, and the company did not intend to offend anyone, Jones said. "We're kind of known for edgy, kind of brash advertising tactics, and we knew this would spark a certain...